FR2368851A1 - - Google Patents

Info

Publication number
FR2368851A1
FR2368851A1 FR7731754A FR7731754A FR2368851A1 FR 2368851 A1 FR2368851 A1 FR 2368851A1 FR 7731754 A FR7731754 A FR 7731754A FR 7731754 A FR7731754 A FR 7731754A FR 2368851 A1 FR2368851 A1 FR 2368851A1
Authority
FR
France
Prior art keywords
capacitor
circuit
gate electrode
series
connection point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7731754A
Other languages
French (fr)
Other versions
FR2368851B3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novanex Automation NV
Original Assignee
Novanex Automation NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Novanex Automation NV filed Critical Novanex Automation NV
Publication of FR2368851A1 publication Critical patent/FR2368851A1/fr
Application granted granted Critical
Publication of FR2368851B3 publication Critical patent/FR2368851B3/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices
    • H05B41/044—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes
    • H05B41/046—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes using controlled semiconductor devices

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

L'invention a trait à un dispositif d'amorçage pour un tube à décharge. Elle a pour objet une disposition de circuit pour amorcer et faire fonctionner un tube à décharge, comportant un premier élément de commutation à semiconducteur ayant une électrode de gâchette distincte, et un second élément de commutation à semiconducteur qui est connecté entre ladite électrode de gâchette et une point de raccordement entre un premier condensateur et un second condensateur qui sont connectés en série avec un élément redresseur. Un circuit dans lequel lesdits premier et second condensateurs sont connectés en série, est shunté par un circuit possédant une diode Zener. Celle-ci est choisie pour avoir une tension de claquage qui est adaptée à la tension admissible maximale dudit premier condensateur connecté entre ledit élément redresseur et ledit point de raccordement L'arrangement de circuit arrête automatiquement l'opération d'amorçage après qu'un certain nombre d'essais aient été tentés. Application : notamment à l'amorçage de tubes fluorescents.The invention relates to a starting device for a discharge tube. It relates to a circuit arrangement for initiating and operating a discharge tube, comprising a first semiconductor switching element having a separate gate electrode, and a second semiconductor switching element which is connected between said gate electrode and a connection point between a first capacitor and a second capacitor which are connected in series with a rectifier element. A circuit in which said first and second capacitors are connected in series is bypassed by a circuit having a Zener diode. This is chosen to have a breakdown voltage which is matched to the maximum allowable voltage of said first capacitor connected between said rectifier element and said connection point The circuit arrangement automatically stops the firing operation after a certain many attempts have been made. Application: in particular to the ignition of fluorescent tubes.

FR7731754A 1976-10-22 1977-10-21 UNIVERSAL PRIMING DEVICE FOR A DISCHARGE TUBE Expired FR2368851B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7611735A NL7611735A (en) 1976-10-22 1976-10-22 UNIVERSAL START-UP DEVICE FOR A GAS RELEASE TUBE, SUCH AS FOR EXAMPLE A FLUORESCENT TUBE.

Publications (2)

Publication Number Publication Date
FR2368851A1 true FR2368851A1 (en) 1978-05-19
FR2368851B3 FR2368851B3 (en) 1980-02-29

Family

ID=19827100

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731754A Expired FR2368851B3 (en) 1976-10-22 1977-10-21 UNIVERSAL PRIMING DEVICE FOR A DISCHARGE TUBE

Country Status (6)

Country Link
BE (1) BE859924A (en)
DE (1) DE2746971A1 (en)
FR (1) FR2368851B3 (en)
GB (1) GB1560510A (en)
IT (1) IT1088802B (en)
NL (1) NL7611735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430162A1 (en) * 1978-06-27 1980-01-25 Philips Nv ELECTRIC DEVICE PROVIDED WITH AT LEAST ONE GAS AND / OR VAPOR DISCHARGE TUBE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618975A1 (en) * 1986-06-05 1987-12-10 M & V Reklametechnik Ohg Method for the intermittent operation of a fluorescent lamp, and a circuit for carrying out the method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430162A1 (en) * 1978-06-27 1980-01-25 Philips Nv ELECTRIC DEVICE PROVIDED WITH AT LEAST ONE GAS AND / OR VAPOR DISCHARGE TUBE

Also Published As

Publication number Publication date
FR2368851B3 (en) 1980-02-29
BE859924A (en) 1978-04-20
IT1088802B (en) 1985-06-10
DE2746971A1 (en) 1978-04-27
GB1560510A (en) 1980-02-06
NL7611735A (en) 1978-04-25

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Legal Events

Date Code Title Description
ST Notification of lapse